[TechAssist] Re: Toshiba TP50F90 color intermittent
- From: becyn <becyn@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 25 Nov 2005 13:46:00 -0500
Yes, Toshiba's "hyper or scan converter pcb's have been dropping like
flies lately around here.
Some of them seem to have bad via's which are sensitive to tapping, or
twisting the can slightly.
Jim McVey
McVey Alltronix
327 Broadway
Newburgh N.Y. 12550
"If it doesn't play...
CALL MCVEY !!!!!!"
Factory authorized
service for over 20
major brands.
845 561 8383
(Last of the Mohegans)
Carol Rundle wrote:
> If your model has standup shielded module( hyper brd.) just behind A/V jack
> panel, try a little freeze, and heat, inside module. if it simulates your
> symtoms, remove brd., ESR lytics , I've repaired several Toshiba
> hyper brd's, found weak,leaky smd lytics, usually find several
> (8-10)weak,leaky ! Causing symtom's similar to your 's.. hth
>
>Bill
> Bill'sTV
> Sonora,Calif.
>
>
>Ian Scott <service.depot@xxxxxxxxxxx> wrote:Hello, This set is in the
>customer's home and intermittently loses
>color. When there is no color, the black and white picture has a noise
>in it that appears like you're looking through a screen door. Both the
>main picture and PIP will lose color. When I remove the rear cover to
>work on it, after 10 minutes or so the problem won't occur anymore. I
>have tried to heat up the pc boards with a hair dryer, but the symptom
>won't return (until I leave). I suspect the comb filter.
>The customer normally watches digital cable and he has had the cable box
>replaced. I have asked the customer to try using his DVD to see if it
>loses color as well, but so far the results are inconclusive.
>Thanks in advance for any help.
>Ian Scott
>Service Depot
>252 Lasalle Blvd.
>Sudbury, ON
>P3A 1W6
>705-566-3557
>Fax 705-566-3455
>
>
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>Carol Rundle
>brundle@xxxxxxxxxxxxx
>
>
>
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